Combination convection and radiant heater



July 11, 1928.

S. J. DELANEY COMBINATION CONVECTION AND RADIANT HEATER 2 sheets-skeet '1 Filed March 25, 1925 July 17, 1928.

S. J. DELANEY GOMBINATICN CONVECTION AND RADIANT HEATER- Filed March 23, 1925 2 Sh66tSSh6et 2 through the passage 12 and an upward 0111) rentof air will also be induced-through the I central or innermost passage 17, this being possible as the base 2 is open to permit the entrance of air, and the cover. 7 is provided with openings 8 to permit the air flow thus induced to-freely escape into a room. VThis air is heated by convection only andis in no manner contaminated with the products of combustion and may therefore be con-' tinuously circulated without danger of con taminating the airof the room.

The heat thus imparted is, of course, taken from the products of combustion which are escaping and these are thus cooledand have lost most of their heat units before they escape through the vent 26. The heat is, of course, primarily obtained by the flame of the gas burner indicated at 30, but this heat is also liberated by radiation, as the glower plate and the grill are'constantly throwing off radiant heat.

From the foregoing it can be seen that the combined advantages of a radiant and convection type of'heater are obtained. Instantaneous heat and a cheerful appearance of the flame are obtained the moment the burner is lighted, and positive circulation of air in the room or of several rooms is in sured- The heating surfaces subjected to the action of the hot gases or products of combustion are, of course, scientifically designed to reduce the temperature'vof the escapingproducts of combustion as much as possible and high efficiency of the convection part of the heater is thus obtained.

All products of combustion arethoroughly vented and danger of polluting or otherwise alfecting the air of the roomor rooms being heated is prevented as suflicient temperature is maintained in the escaping gases to insure a proper draft.

By referring to Figs; 8, 4 and 5 it will be noted that the upper ends of the passages 18, 1919v and 20 are provided with angularly disposed cover sections such as shown at 4:0. This is important as it prevents the collection of dust or other articles which might fall through the openings 8 in the upper cover plate 7 The lower part of the front portion ofthe passage 12 is similarly provided with an inclined bottom section as indicated at 41.v This serves two functions, first, that of preventing the collection of macess heating of the exterior surface, thus eliminating the danger of burning a small child ifitshould touch or falljagainst the same. The low temperature maintained is of further importance as it permits the exterior casing to be lacquered, enamelled or finished in any manner desired.

- While'certain features of the present in; vention are more or less, specifically lllllS- trated, I wish it understood that various changesin form and proportion may be resorted to within the'scope of'the appended the materials and finishof the several parts employed may besuch as the experience and judgment of the manufacturer may dictate *or various uses may demand. -v v Having thus described my invention, what 7 claims. I similarly wish it understood that I-claim and desire. to secure by Letters Pat- I cut is,

1. A heater comprising a main exterior. casing vertically disposed and elongated, and rectangular in shape in cross section, a base member forming a support therefor, a perforatedplate forming a cover, an intermediate casing sup: ported by the base and interspaced with relation to the exterior casing toform' an air heating passage in communlcationwithair inlet openings formed in the base and with of the characterdescribed the perforated cover, an inner casing dis posed within the intermediate casing and in- 7 terspaced therefrom to form a front pasj sage, a rear passage and a pair of side pas-1 sages, a gas burner, means for directing the 1 products of combustion liberated by the. I

burner upwardly into the frontv passage,

baflie members directing the products of combustion downwardly through the side passages and then upwardly through the rear passage, and a vent pipe connected with the upper part of the rearpassage.

' 2. A combination convection and radiant heater comprising an exterior, an intermedtsaid casings being ate and an inner casing,

substantially rectangular in cross-section and interspaced with relation to each other to form an exterior heating passage, a central air heating passage and a series of intermediate passages for the reception of prod nets of combustion, a base member supporting said casings and having openings formed therein in communication with the inner and the exterior air heating passages, a covermember supported by the exterior casing, 7

said cover member being'perforated to permit heated airto escape therethrough, said exterior casing having. a front opening formed therein, said intermediate easing also having an opening form'ed'therein in alignment with the front opening, a gas burner disposed below the opening in the intermediate casing, radiant elements disposed in the opening in the intermediate casing and above the burner and exposed to the atmosphere through the front opening in the ex- -10 terior casing, means for directing the prodnets of combustion from the burner and the radiant elements into the intermediate passages, vapor plates in said passages deflecting the products of combustion upwardly and-downwardly during their flow through said passages, and a vent pipe connected with one of the intermediate passages to carry away the products of combustion.

SAMUEL J. DELANEY. 

